Aloe laeta
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Aloe laeta is a species of aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet laeta comes from Latin , means 'luminous' and refers to the bright carmine-red flowers of the species.
description
Vegetative characteristics
Aloe laeta grows stemless or very short stem-forming and is simple. The trunk reaches a length of up to 5 centimeters and a diameter of 3.5 centimeters. The approximately 24 lanceolate, narrowed leaves form dense rosettes . The bluish gray, indistinctly lined leaf blade is up to 20 centimeters long and 7 to 8 centimeters wide. The striking narrow leaf margins are pink and cartilaginous. The leaf surface is rough. The narrow, deltoid, firm, pink teeth on the leaf margin are 2 millimeters long and flow together at the base.
Inflorescences and flowers
The inflorescence is usually simple, occasionally it consists of two to three branches. It reaches a length of 40 to 60 centimeters. The dense, heady or almost heady grapes are 5 to 7 inches long and 6 inches wide. The deltoid-pointed bracts have a length of 5 millimeters and are 2.5 millimeters wide. The vermilion flowers are on stems 20 to 25 millimeters long . The flowers are 15 millimeters long and narrowed at their base. Above the ovary , the flowers are expanded to a diameter of 7 millimeters. They are then narrowed towards the mouth. Your outer tepals are almost not fused together. The stamens and the style protrude up to 1 millimeter from the flower.
Systematics and distribution
Aloe laeta is common in Madagascar .
The first description by Alwin Berger was published in 1908. A distinction is made between the following varieties :
- Aloe laeta var. Laeta
- Aloe laeta var. Maniaensis H.Perrier
Aloe laeta var. Laeta
The variety iswidespreadin Madagascar on the Ibity Mountain at altitudes of 1500 to 2200 meters.
Aloe laeta var. Maniaensis
The differences to Aloe laeta var. Laeta are: The leaves of the variety are 8 centimeters long and 2 centimeters wide. Their flowers are straight and funnel-shaped.
The first description of this variety by Henri Perrier de La Bâthie was published in 1926. Aloe laeta var. Maniaensis is distributed in Madagascar in the province of Fianarantsoa between the rivers Mania and Ivato on quartzite rocks at altitudes of about 1400 meters. The variety is only known from the locality of the type.
Danger
Aloe laeta , including the varieties, is listed in Appendix I of the Washington Convention on Endangered Species .
proof
literature
- Susan Carter , John J. Lavranos , Leonard E. Newton , Colin C. Walker : Aloes. The definitive guide . Kew Publishing, Royal Botanic Gardens, Kew 2011, ISBN 978-1-84246-439-7 , pp. 239 .
- Leonard Eric Newton: Aloe laeta . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 151 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 131.
- ↑ Alwin Berger: Liliaceae-Asphodeloideae-Aloineae . In: Adolf Engler (ed.): The plant kingdom. Regni vegetablilis conspectus . Issue 33, Wilhelm Engelmann, Leipzig 1908, pp. 256-257 ( online ).
- ^ H. Perrier: Les Lomatophyllum et les Aloë de Madagascar . In: Mémoires de la Société Linnéenne de Normandie. Botanique . Volume 1, Number 1, 1926, p. 30.
- ↑ Appendices I, II and III valid from April 3, 2012 . (accessed October 24, 2012).
Web links
- Inflorescence of Aloe laeta
- Drawing of aloe laeta
